Work-holder



J. W. WAGNER.

I WORK HOLDER;

APPLICATION FILED AUG. 13, 1919.

1,396,302. Patented Nov. 8, 1921.

4 SHEETS-SHEET 1.

I nh. I

I In- FY I I Z72 glllllllli f J. W. WAGNER.

WORK HOLDER.

APPLICATION FILED AUG. 13. 1919.

39 302 Patented NOV. 8, 1921.

4 SHEETSSHEET 2.

J. W. WAGNER.

WORK HOLDER. APPLICATION rim) AUG. 1-8, 1919.

1,396,302. Patented Nov. 8, 1921.

minmmn vii w 3 4 a! i llllllllllllllllln y/y/kl J. W. WAGNER.

WORK HOLDER.

APPLICATION FILED AUG.1B,19l9.

Patented Nov. 8, 1921.

4 SHEETS-SHEET 4.

UNITED," STATES PATENT OFFICE.

JULIIAN w. WAGNER, or nnrnorr, MICHIGAN.

WORK-HOLDER.

Specification of Letters Patent.

Patented Nov. 8, 1921.

Application filed August 18, 1919. Serial No. 818,271.

To an whom it may concern: 7

Be it known that I, JULIAN W. WAGNER,

I a citizen of the United States of America,

,or otherwise operated upon, particularly when the piece ofworkis to be provided with a series of spaced openings or recesses. My invention aims to provide a universal indexing mechanism associated with a work holder so that a piece 'ofwork held by the work holder may be accurately positioned and adjusted in various directions. All adjustments are made by hand and some of the adjustments'imay be made more expeditiously than others, but in each instance it is possible to obtain a minute adjustment which insures accuracy in the drilling or boring operation.

My invention further aims to provide a drillin or boring machine with an adjustablefta le, an adjustable support, a detachablehousing, and a rotatable work holder, all of which/are compactly assembled with the adjusting mechanism. conveniently located for theoperator or attendant of the machine. I

My invention still further aims to provide a work holder wherein the parts are constructed with a-view of reducing the cost of manufacture and at the same time retaining those features by which safety, durability and ease of assembling are secured.

With such ends in view, my invention "resides in the novel construction to be hereinafter considered and then claimed.

Reference will now be had to the drawings,-wherein V Figure 1 is a side elevationof a drilling or boring-machine in accordance with my invention;

Fig. 2vis a plan of the work holder;

Fig. 3 isa front elevation of the same;

Fig. 4. is' an enlarged vertical sectional,

view of the base of the drillipg machine} Fig. 5 is an' enlarged cross sectional view of the work holder taken on the line V- V of Fig. 2; J

Fig. 6 is a perspective view of a table Fig. 7 is an enlarged cross sectional view taken on the line VII-VII of Fig.2;

' Fig. 8 is a vertical sectional view of the detached housing and its work holder, and 1. Fig. 9 is a plan of the same, partly broken away and partly in section.

In describing my invention by aid of the views above referred to,-I desire to point out that the same are intended as merely illustrative of an example by which my invention may be ut into practice, and I do not care to confine. myself to the precise construction and arran ment of parts, other than defined by th appended claims.

In the drawings, the reference numeral 1 denotes a circular base havingthe upperedge thereof provided with antifrictional bearings 2 for the lower flared annular end 3 of a machine body 4, which may be rotated on the base 1 and clamped in an ,adjusted position on said base by a clamping device 5 carried by the lower end of the machine bod 4 and ada ted to engage the innerwall of t e base 1. y having the machine body rotatable relative to its base the machine may be,positioned for proper transmission of power thereto. The upper end of the machine body 4 terminates in a knee or bed 6 andat the rear side of the knee 6 is an upright 7 providing a throat in which is located brackets 8, 9- and 10. The upper end of the upright 7 aifords bearings 11 for a spindle 12 and the spindle may be driven by a belt or other power transmission devices from a suitable source of power. The spindle 12 xtends through a vertical member 13 adjusta drill or other tool, the drill or tool is adapted to extend through a guidello carried by the bracket 10.

The knee 6 of the machine i p with shears 16 andfslidable on said shears B's-"105 I a table 17 having depending side lugs provided with clamping bolts 19 and nuts 20, said' clamping bolts, extending into "grooves 21in the sides of the knee 6 so that:

the table 17 may be locked in an adjusted nally of the ee 6 and on the shears 16 thereof, said table has a depending nut porwhich may be adjusted relative to the v 32, carried by the'front centrally of the table slot and meshing with r ing the amount of movement of the tion 22 in screw-threaded engagement with a rotatable screw-23 and rear walls 24 of the knee 6, andjthe top of said knee is provided with longitudinal slots 25, one of which the nut portion 22 of the table. On the forward end of the screw 23 is a'hand wheel .26 which may be revolved to shift the table longitudinally ofthe knee 6. In order that the adjustment of the table may beaccurately made, provided with an opening. 28 and mounted on the wall 27 'at'said opening-is a gage frame 29 rovided with a screw 30 and constructed or clamping a fiat table ga e 31 ame 29, said age extendin through-the opening 28 of the table wa 27. The forward end of the gage 3l.is slidable in a support 6 and said support is provided with a suitable pointer or indicator 33 which overhangs the age 31 and permits the operator of the mac ine to eas' y determine the distance the table 17 has been moved on'the knee 6 by rotating the screw 23.

The table 17 is and 35 and slidable' on said shears ism. Supfimrt 36 provided with flanges 37 and 38. The ange 37 is at-the front edge'of the table 17 and has. a longitudinally disposed gage.

38 above which extends a pointer or indicator 39, carried by the gage frame 29. This pointer or indicator will permit of the operator of the machine readily determin- :36 relative to the table 17. The other flange 38 extends downwardly at the shear 35 and has a longitudinal slot 40 to receive a look ing bolt 41 carried by the table 17, said locking bolt having a knurlednut 42 that maybe adjusted to bind the flange 38 against the shear 35 and thereby secure the support in an adjusted position relative to the table 17.

The lower face of the supporthas a longitudinal rack 43 confronting a slot 44 17 and extending into the rack 43 is a pinion 45 having a hub portion 46 rotatable .in a bearing 47, carried by the table 17 below the shear 35 thereof.

of the pinion 45 is held against longitudinal displacement relative to its bearing 47 and the hubportion of said pinionhas'a key 'or spline 48 extending into a groove 49 in said shaft being the knee 6 so that it may be rotated. to shift the support 36 longitudinally of the table 7 r 17, .65

The sliding connection between the journaled in the front' provides clearance for said table has its front wall 27 'and hold; the

wall 24 of the knee mally, I ,housing 60 seated on the support 36. The

formed with shears 34 housing 60 is detachableso that it and apsupport The hub .portion- 46 -a worm 71 adapted to rear walls of pinion 45 and the shaft 50 is essential in.

the screw 23 and at any position of" the table permit of the support 36 being adjusted on the tableby rotatin the shaft 50.

On the outer or f 50 is a hand wheel the hand Wheelf26, the periphery of'the 51, somewhat similar to hand wheel '51 has teeth 52, corresponding to a worm gear, so that a worm 53 may mesh therewith. The

.worm 53 is disgosed' at the lower edge of the hand whee 51 a shaft 54 journaled 55 carried by v 6. The pivoted housing 55 may be shifted to move the worm 53 out of engagement with and is mounted; on .in a pivoted housing the hand wheel 51, and the pivotedhousing has adetent56 to engage in the wall 24 position. With the worm "housing in an activeiposition' the shaft 50 can be rotated and the hand wheel 51 more minutely adjusted orward end of the shaftworm housing in an inactive.

with the exception that the front wall 24 of the knee I than ,if the wheel itself where driven by hand.

The top of the suppOrt36-has longitudinal ways 57 adapted to anchor clamping members 58 and said clamping membersnorengage the flange59 of-a cylindrical purtenant parts thereof may .be bodily removed and this permit of a piece of work being anchored directly on-the support 36 for operation by the drill or tool of the ma chine.

v of clamps or .other devices being employed for securing (p anand has ed with in-.

. D Rotatable in the upper end-.of the housing 61 and secured on the a piece of work on the work, holder. Thecoupling ring 61 by screws 64 or other fas-. tening' means and similar screws 65 are emrotary work holder isconnected tothe,"

loyed, for holding a worm gear 66 on the ower endof the coupling ring 61, said worm gear preventing vertical disp acement of the rotary work holder. i

The side of the housing 60 has an opening 67 exposin the worm gear 66 and said opening provi es clearance for a worm ho sing 68 pivotally connected to aside lug 9 i of the housing 60. In the worm-housing 68 is journaled a shaft 70 on which is mounted I meshwith the worm gear 66, so that the shaft 70 may be rotated to minutely adjust the worm gear 66 and the rotarywork holder 62. -.-The worm housing 68 has the freeenjd-thereof providedwith a 7 -screw 72 that may beadjusted to engage in the worm housing the housing-60 and lock 68 in a closed position, otherwise, the worm housing 68 may be swung to an inactivepo.

sition, somewhat similar to the worm housing 55 previously referred to.

The upper edge of the worm housing 68 is provided with a pointer or indicator 7 3 and when said worm housing is in a closed position, as shown in Figs. 8 ad 9, the pointer or indicator is in proximity to the periphery of the rotary work holder 62, which is graduatedor calibrated, as shown in Fig. 3, thus permitting of the operator of the machine determining the. amount of movement imparted to the rotary work holder 62 by the worm shaft 70.

By reference to Figs. 5 and 8, it will be observed that the rotary work holder is greater in diameter than the housing 60 and since the work holder is detachable by removing the screws 64, the lower overhanging edges of the work holder may be provided with interchangeable indexing rings 7 4 held in place by screws 75 or other fastening means. The.index ring, as shown in Fig. 3, has a series of equally spaced notches 7 6 and adapted to engage in one of said notches and temporarily hold the work holder, is a bolt 7 7 adjustable in a forked or bifurcated bracket 78, carried by the housing 60. A knurled nut 7 9 is placed on the bolt 77 in the bifurcated end of the bracket and by rotating the nut the bolt 77 may be shifted into and out of engagement with the index ring of the rotary work holder.

The bolt 77 may also be locked in an adjusted position by a set screw 80 carried by the bracket 78.

.Another set screw 81, best shown in Fig. 8, is carried by the housing 60 to engage the coupling ring 61 and hold said ring and the rotary work holder fixed relative to said housing.

From the foregoing it will be observed that the housing 60 and its appurtenant parts form an attachment that may be removed from the support 36 or used in connection therewith, the rotary work holder 62 being essential when a piece of work is to be intermittently rotated to permit of operations being carried on. hen the piece of work is to be simply shifted longitudinally and transversely of the machine knee 6, then the piece of work may be connected direct to the support 36. In either instance, after the locking devices are released, the adjustment may be quickly made, particularly in connection with the index ring carried by the ro ary work holder, as it is only necessary to place an index ring in position which will insure a positive intermittent rotary movement of the work. holder. Then again, after certain adjustments have been made the worm housings 55 and 68 can be brought into action for minute adjustments, and it is through the medium of various adjustments associated with the entire dev ce that I am able to perform operations with the greatest of precision, and consequently prevent many pieces of work from being discarded'due to improper calculations.

It is thought that the operation and utiland from the front of the machine, a. screw for adjusting said table, a support slidable on said table, a rack carried by said support, I

a pinion extending through said table to engage said rack for moving said support on said table, a shaft supporting said pinion and disposed parallel to said screw, a hand wheel on said shaft, and means adapted to be placed in engagement with said hand wheel for minutely adjusting said hand wheel.

2. A work holder comprising an adjustable table, a support slidable thereon, a rack and pinion for moving said support on said table, a shaft supporting said pinion, a hand wheel on said shaft, and means including a pivoted worm housing and a worm in said housing for engagement with said hand wheel for minutely adjusting said hand wheel.

3. A machine of the type described, comprising a knee, an adjustable table on said knee, adjustable means carried by said knee for said table, a support slidable on said table, adjustable means carried by said knee for said support,.the adjusting means of said table and support being disposed in parallelism, and operable at the front of said knee, and a gage adjustably held by said table and slidable in a portion of said knee to determine the movement of said table.

4. A machine as characterized in claim 3, wherein the gage is'supported by a gage frame and said frame provided with a pointer cooperating with a gage on said support to indicate the movement of said support relative to said table.

5. A machine of the type described, comprising a knee, an adjustable table on said knee, table adjusting means carried by said knee for said table, a support slidable on said table, support adjusting means car fied by said knee for said support and disposed in parallelism with said table adjusting means, anda worm housing on said knee adapted to be swung into engagement with the support adjusting means for minutely adjusting said support.

6. A machine of the type described, com-v prising a knee. an adjustable table on sai knee, an adjustable support on said table, a detachable housing on said support. a rotary work holder on saidhousing, said work holder including a coupling ring in said.

' engage said worm pling ring in said housing, a worm gear connected to said ring, and a worm outside of said housing adapted to engage said worm work holder.

7 A machine of the type described, comprising a knee, an adjustable table on said knee, an adjustable support on said table, a detachable housing on said support, a couhousing, a work holder on sald couplingring, a worm gear carried by said coupling ring, and a Worm housing and Worm carried by saidghousing adapted to holder.

gear to adjust said gear to adjust said work 8. Amachine as'characterized in claim 7 18 wherein the worm housing and worm are pi'i otally supported by the housing and adapted to be locked in engagement therewith. a I

' 9. A machine as characterized in claim 7 wherein indexing means is carried by said housing and said work holder.

In testimony whereof I- afiix my signature in the presence of two witnesses.

JUQLIAN w. WAGNER V Witnesses:

- KARL H. BUTLER,

G. E. MoGRANN. 

